TL;DR

Slack is a Communication MCP server that lets Claude Code, Cursor, Windsurf and any MCP-compatible AI agent slack channels, messages, and workspace management. Install in 1 minute with mcpizy install slack.

💬

Slack

Install verified 7 tools

Communication

Last updated September 23, 2026 · By MCPizy team

Slack channels, messages, and workspace management

Official homepage

Install Slack

Via MCPizy CLI (recommended):

mcpizy install slack

Or run directly:

npx -y @modelcontextprotocol/server-slack

Tools exposed

7 tools available

slack_list_channels

List channels in the workspace

Inputs

limitnumberoptional

slack_post_message

Post a message to a channel

Inputs

channel_idstringrequired
textstringrequired

slack_reply_to_thread

Reply to a thread in a channel

Inputs

channel_idstringrequired
thread_tsstringrequired
textstringrequired

slack_add_reaction

Add an emoji reaction to a message

Inputs

channel_idstringrequired
timestampstringrequired
reactionstringrequired

slack_get_channel_history

Get recent messages from a channel

Inputs

channel_idstringrequired
limitnumberoptional

slack_get_users

List users in the workspace

slack_get_user_profile

Get a user's profile information

Inputs

user_idstringrequired

Configuration

Works identically across clients. Only the config file path differs.

Claude Code~/.claude.json

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-...",
        "SLACK_TEAM_ID": "T01..."
      }
    }
  }
}

Cursor.cursor/mcp.json

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-...",
        "SLACK_TEAM_ID": "T01..."
      }
    }
  }
}

Windsurf~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-...",
        "SLACK_TEAM_ID": "T01..."
      }
    }
  }
}

Authentication setup

1
Create a Slack app and install it in your workspace
Get it SLACK_BOT_TOKEN
2
Add required OAuth scopes: channels:read, chat:write, reactions:write, users:read
Get it
3
Copy your Team ID from Slack workspace settings
Get it SLACK_TEAM_ID

What you can do with Slack MCP

Paste any of these prompts into Claude Code, Cursor or another MCP-compatible client.

“Post 'Deploy completed' to #engineering”

Uses: slack_list_channels, slack_post_message

“Summarise the last 50 messages in #support and flag any urgent issues”

Uses: slack_get_channel_history

“React with :eyes: to the latest message in #incidents”

Uses: slack_get_channel_history, slack_add_reaction

“Who is @alice and what's her role?”

Uses: slack_get_users, slack_get_user_profile

Works with

Claude Code

Claude Desktop

Cursor

Windsurf

VS Code + Copilot

Any MCP Client

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Alternatives to Slack

If Slack doesn't fit your stack, these Communication MCP servers solve similar problems.

✈️

Telegram API for dialogs and messages

🎮

Discord

Discord bot integration for servers and channels

🗣️

Discourse

Forum integration and community management

Frequently asked questions

What is the Slack MCP server?

Slack is listed as an Communication Model Context Protocol server whose documented purpose is to let an MCP-compatible agent slack channels, messages, and workspace management. Client support, permissions and authentication remain specific to the upstream project.

How do I install Slack MCP with Claude Code?

The fastest way is the MCPizy CLI: run `mcpizy install slack` and MCPizy will add the server to your `.claude.json` automatically. You can also install it manually by adding an entry under `mcpServers` in `.claude.json` with the command `npx -y @modelcontextprotocol/server-slack` and restarting Claude Code.

Does MCPizy charge to view or install Slack MCP?

No. Reading this profile and copying its install guidance is free. Upstream software, API, account or usage costs are separate, and licence coverage should be checked from the linked source when available.

Does Slack MCP work with Cursor and Windsurf?

The MCP standard is supported by those clients, but a specific server can still have client-specific setup or transport limits. Use the configuration shown on this page when present and verify the upstream instructions before installation.

What can I do with Slack MCP?

Its documented purpose is to let an MCP-compatible agent slack channels, messages, and workspace management. The exact tools, permissions and write capabilities depend on the server version and configuration shown by the upstream project.

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